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Symptom Possible Cause Solution
Handwriting
cannot be shown
or no touch
signal is
detected.
The color of the pen is
the same as or similar to
the background color.
Change the color of the pen.
Your hand or other
objects are on the
display when you are
writing.
You are advised to use the pen
rather than a finger to write. Hold the
pen as far from the nib as possible.
The angle between the pen and
display needs to be greater than 60
degrees. Do not touch the display
with your sleeve or wrist.
Strong light or infrared
interference
Remove the interference source
or change the room environment.
The writing method is
incorrect.
You are advised to use the pen
rather than a finger to write. Hold the
pen as far from the nib as possible.
The angle between the pen and
display needs to be greater than 60
degrees. Do not touch the display
with your sleeve or wrist.
No sound is played
and no image is
displayed.
● Check whether the power plug is inserted into the power
outlet and whether the display is powered on.
● Check whether the rocker switch on the interactive display is
switched on.
● Check whether the Standby button on the remote control
was pressed.
● Check whether the video and audio input cables are
connected correctly.
● Check whether the display is switched to the right signal
source.
● Check the display's brightness and contrast settings.
Image is displayed
properly, but no
sound is played.
● Check the volume.
Check the volume.
● Check whether the Mute button on the remote controller is
pressed.
● Check whether the audio cable between the PC and
interactive display is connected correctly.
No image is displayed
or the image is black
and white.
● Modify the color settings.
● Check the display system.
The image or sound
is interrupted.
● Find the device causing the interference and move it away
from the interactive display.
● Do not share the power socket of the display with an electric
appliance that causes interference.
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